This is a must read book! It’s well written, exciting and scary. The technologies that the book is about have many potentially positive and negative outcomes. If you believe that society will still be dominated in the future by "zero sum" philosophies, at the individual, corporate and governmental level, then the outcome looks very scary. If you believe that society is ready to adopt "non-zero sum" games then the outlook is exciting and enormous changes will result that are positive. Non-zero sum games are behaviors that include "the unique human power and pleasure that comes from doing something that enriches everyone, a game where nobody has to lose for everyone to win." Zero sum games are best typified by our sports. There is a winner and there is a loser. When the rules are bent or broken, then tragic results can occur, i.e. Enron, which is zero-sum corporate behavior personified. Or, a present nemesis, spam. Spam is where one person wins and everyone else looses.